Loom.



No. 641,792. Patented Jan. 23, 1900.

J. NORTHROP & E. s. STIMPSON.

3 Sheets-Sheet I.

LUOM.

(Application filed Aug. 25, 1899.) (No Model.)

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LOOM.

(Application filed Aug. 25, 1899.) (No Model.) 3 SheetsSheet 2.

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Patented Jan. 23, won." J. NURTHBOP' & E. s. STIMPSON.

LOOM.

(Application filed Aug. 26, 1899.)

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(No Model.)

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ST T S JONAS NORTHROP AND EDlVARD S. STIMPSON, OF HOPEDALE, MASSAOHU-'SETTS, ASSIGNORS TO THE DRAPER COMPANY, OF SAME PLACE AND LOOM.

SPECIFICATION forming part of Letters Patent No. 641,792, dated January23, 1900.

Application filed August 25,1899. Serial No. 728,395. (No model.)

EDWARD S. STIMPSON, both of Hopedale,

county of Worcester, State of Massachusetts,

have invented an Improvement in Looms, of

which the following description, in connection with the accompanyingdrawings, is a specification, like letters and numerals on the drawingsrepresenting like parts.

This invention relates more particularly to automatic filling-supplyinglooms wherein the supplying mechanism is operated at the proper time toeffect the introduction of a fresh supply of filling-as, for instance,in the loom shown in United States Patent No. 626,187, dated May 30,1899, the said mechanism being therein shown as operated upon exhaustionto a predetermined extent of the fillingin the shuttle. As'the freshsupply of filling is transferred the nearly-exhausted filling-carrier isejected from the shuttle into a box or suitable receptacle, carryingwith it the end of filling-thread leading from the edge of the cloth;and our present invention has for its object the production of means to.part orsever this filling so that the length of thread extending fromthe ejected filling-carrier will be as short as possible, the length offilling between it and the cloth being engaged by a thread-clamp orholding device and moved into position to be severed adjacent the clothby a thread-cuttingtemple. The piece of thread thus cut in two placesbetween the shuttle and the cloth is retained by the clamp and movedaway from the shuttle-path, and before the next change of filling iseffected the clamp is opened to release such piece of thread. I

We have herein shown one practical 'embodiment of our invention asapplied to a loom provided with.fillingsupplying mechanism,substantiallyas shown in United States Patent No. 628,228, dated July 4, 1899, and tocooperate wit h athread-cuttingtem ple, which may be of the type shownin United States Patent No. 585,465, dated June 29,1897; but ourinvention is not restricted in its application to the exact form of loomshown nor to the particular type of thread-cutting temple hereinillustrated.

Various novel features of our invention will be hereinafter described,and particularly pointed out in the claims.

Figure l is a front elevation of a sufficient portion of a loom to beunderstood, showing filling-supplying mechanism having one embodiment ofour invention applied thereto. Fig. 2 is a right-hand side elevation ofthe apparatus shown in Fig. 1, with the lay-back and the thread partingand clamping means in normal position. Fig. 3 is an enlarged top or planview of a portion of the loom, showing the thread clam p and parterinoperative position just before the end of the filling between the clampand the edge of the cloth is put into position to be engaged by thethread-cutting temple, also shown. Fig. 4 is an enlarged inner sideelevation of the thread clamp and parter in normal position, the devicefor opening the clamp and parter being broken out. Fig. 5 is a similarview showing the clamp and parter in position to act upon the threadwhen the transferrer is operated to effect a change of filling, the laybeing shown as on its forward beat. Fig. 6 is a sectional detail on theline 00 m, Fig. 3, of the thread-parter looking to the right. Fig. 7 isan enlarged perspectiveview of the fixed member or jaw of thethread-clamp, and Fig. 8 is a side elevation of the device whichoperates to open the clamp and the parter as they are moved inopposition to act upon the filling-thread.

In carrying out our invention the fillingparter is so constructed andarranged that it will only operate when the shuttle is rop erly boxed,the support upon which the parter is mounted acting as a shuttle-feelerto detect the improper boxing of the shuttle.

As shown in Figs. 1 and 2, the loom-frame A, breast-beam A, the lay Ahaving the bottom of one of its shuttle-boxes cut away below theself-threading shuttle S, the fillingsupplying mechanism comprisingconnected rotatable plates suitably shaped to hold the filling-carriersb, Fig. 1, the studff, the transferrer f, mounted thereon and having thedepending endf and a finger 2l,and thes-haft (1, adapted to be rocked orpartially rotated byor through the action of a feeler ("not hereinshown) upon exhaustion of the filling in the shuttle to a predeterminedextent, are and may be all substantially as shown in United StatesPatent No. 628,228, already referred to, the rock-shaft d hereinreferred to also corresponding to the similarly-lettered part in PatentNo. (526,187, and forming herein, as it does in said patent, a part ofthe controlling means for the filling-supplying mechanism, operativeupon the exhaustion of the filling in the shuttle to a predeterminedpoint. As in said patent, the end f of the transferrer has mounteduponit. a headed rocker-stud m, controlled by a spring 5, and having anattached arm m the arm having mounted upon it a notched dog m providedwith a lateral lug m the dog adapted to be moved into position to beengaged by a hunter 0 on the lay when a change of fillingis to beeffected. The loom-frame is provided with a stand A at thefilling-supplying side, on which is pivoted at 5 a yoke Y, one of itsupturned arms 3 directly engaging the lug m a lateral stud or projection3/ on its other arm 1 and provided with an antifriction-roll 6 beingnormally engaged by a detent-finger (Z fast on the rock-shaft d andnormally maintained in the position shown by a strong spring 8*,attached at its end to said finger and to the loom-frame, respectively.In the patent referred to one arm of the yoke Y is enlarged and bentrearwardly to form a shuttle-feeler, and in our present invention thecorresponding arm y is also upturned and bent rearwardly to act as ashuttle-feeler; but at its extremity it is notched, as at p, and forms asupport for the thread-parter, to be described, and also for thefeed-clamp. A sharpened blade 19 is secured to the inner face of thearm, with its sharp edge just. above the bottom of the notch, while amovable bladep is mounted to rock on a stud 10, fixed in and extendedlaterally from the inner side of the arm 3/, said blade being slottedatp, for a purpose to be described, and having a depending heel p at itsfront end. A lugp extends laterally from the movable blade near itsheel, and the said blade moves in a guide 12, secured to or forming partof the arm said guide forming a housing for a springdetent adapted whenthe blade is in normal open position to catch over its upper corner 15,(see Figs. 5 and 6,) the detent yielding when the blade is positivelymoved, as will be described, into position to cooperate with the fixedblade 19 to sever filling between them. A pin 16 is shown best in Fig. 6as extended across the notch 1) near its bottom to prevent thefilling-thread from passing too far toward the base portion of the jaws.The stud l0 and a second stud 18, rigidly mounted in the arm y andextended laterally therefrom parallel to the stud 10, serve as supportsfor the fixed member or jaw of the thread-clamp, said jaw being shownseparately in Fig. 7 and comprising an upright web 0, a lateralextension 0, and a flat foot 0 the latter being longitudinally groovedin its upper face, as at 0 and intersecting a slot- 0 in thelaterally-extended part c, said slot forming a guide for the movablemember or jaw of the clamp, to be described. The stud 10 is extendedthrough a hole in the web, (not seen in the drawings,) and the latter ismaintained against the head of the stud by a spring .5 (see Fig. 3,)interposed between the web and a suitable washer to, bearing against theinner face of the movable jaw 19 of the parter. The spring thus servesthe double purpose of a friction-pad for the movable blade, maintainingit open or closed, and to maintain the fixed clamp member in properposition, the stud 18 entering a notch c in the front end of the web andpreventing the latter from rotating on the stud 10. The stud 18 extendsthrough the slot 19 of the movable blade, and the rocking movement ofthe latter in opening and closing is thus permitted.

As shown in Figs. 3, 4, and 5, the movable member or jaw of the clamp ismade as an elongated thin blade 0, fulcrumed near its outer end on thestud l8 and having an extension c which extends beneath the lateral lugp. A spring 5 (see Fig. 3) is coiled around the stud 18 and held at oneend by a lug 25 on the web a and bears at its other end against a pin 30on the member c to normally maintain the jaw a closed, as shown in Fig.4, its serrated edge e at such time resting in the groove 0 of the fixedmember or jaw. The upright slot 0 serves to guide the jaw c as it isrocked, and when the movable blade 19 of the parter is opened the lug 19will engage the extension 0 of the movable member of the clamp and turnthe latter on its fulcrum into relative open position. (Shown in Fig.The lug 19 forms a differential connection between the two movablemembers, for viewing Fig. 4 it will be noticed. that the movable memberof the clamp will not be moved to open the clamp until after the blade11 has been opened and moved far enough to bring the lug 13 intoengagement with the extension p Conversely the jaw 0 will close upon itscooperating fixed member before the blades 19 p will operate to sever athread between them. A pin in the lateral extension 0 crosses the slot 0and passes through a cam-slot 35 in the jaws c to limit its movement andprevent accidental displacement.

The normal position of the parter and clamp is shown in Figs. 2 and 45,with the reduced extremityp of the lug p in position to be acted upon bythe device for opening the'movable members of the clamp and partcr priorto a change of filling, said device being shown best in Figs. 3, 5, and8. An upturned arm 70 secured to the bracket A, is bent over at itsupper end, as at it}, and upon the face of said arm nearest the yoke Yis pivoted at 70 a box-like support or carrier 70 having secured to orforming a part of its side a cam-lip or switch 70 inclined on its underside toward the lay and preferably slightly beveled at its end towardthe lay, as at Ir, a spring 3 (see dotted lines, Fig. 8) holding thebottom of the carrier up against a stoplug 40, the coil of the springbeing supported by a pin 45, fixed in the overhanging end k of theupright arm la After the thread parter and clamp have operated, as willbe described, and returned to normal position the reduced end 10 of thelug p on the blade 19 wipes over the top of the switch-cam k anddepresses the carrier 70 until the end of the lug snaps past theswitch-cam as the parts attain their normal position, (shown in Fig. 4,)the spring 3 returning the carrier k to such position and elevating theswitch, so that when the yoke is swung toward the lay prior to the nextchange of filling the lug will travel along .the under face of theswitch and as the latter is held from upward movement by the action ofthe stop 40 on the carrier 10 the switch will operate to depress the lugp as it travels along the under face of the switch to first open theparter and thereafter to permit the spring 3 to open the clamp, so thatthe latter will be in the position shown in Fig. 5 as the lay nears itsforward position, and when the heel end 23 of the blade o is sodepressed the detentp will engage and hold said blade in such positionuntil positively moved therefrom.

We have herein shown the closing of the clamp and parter as effected bymeans of a hunter C suitably secured to the lay and adapted to engagethe heel p of the movable member of the parter as the lay completesitsforward movement. Such engagement with the heel operates to release theblade from the detent p and to permit the spring 8 to close the jaw 0upon the thread before the movable blade of the parter cooperates withits relatively fixed fellow to sever the fillingthread between the clampand the shut! le then in the shuttle-box, as shown in Fig. 3.

The rock-shaft d may be rocked or partly turned in any suitablemanner-as, for instance, by or through the action of a fillingfeelersuchas shown in United States Patent No. 626,1b7, wherein the shaft will berocked upon exhaustion of the filling in the shuttle to a predeterminedextent. When the shaft d is rocked in the direction of the arrow 50,Fig. 2, the detent-finger d will be raised, permitting the spring 8 toturn the dog m in to position to be engaged by the hunter C the lug m atthe same time acting through the arm y to swing the yoke Y upon itsfulcrum 5, and if the shuttle is properly boxed the upper end of the army will be moved into the position shown in Fig. 5 above and adjacent theraceway of the lay when the latter completes itsforward beat. As will bemanifest, the movement of the yoke to bring the threadclamp and parterbodily into position to act upon the filling-thread takes place beforethe lay completes its forward stroke, the com pletion of such strokeacting after the thread has entered between the members of the clamp andthe parter to first clamp the thread and then to part it between theclamp and the shuttle and adjacent the latter, so that a very short endof filling will be drawn away by the ejected filling-carrier. Theclamping of the thread before the action of the parter prevents twistingor coiling of the thread out of range of the clamp, as would frequentlyoccur were the parter to operate first. The filling having been severed,its loose end is now held between the jaws of the clamp, and the variousparts return to their normal positions, the rock-shaf t d being releasedto permit the spring S to depress the detent-finger ti to thus effectreturn of the yoke to normal position, and as the clamp still retainsits grasp upon the filling end the latter is drawn forward into the pathof the cutting device of a thread-cutting temple, (shown only in Figs. 2and 3,) the latter, as herein illustrated, being the same as shown inUnited States Patout No. 585,465, the movable member 0 of thetemple-cutter cooperating with a fixed member or blade at the movablemember being hooked; as shown in Fig. 2, to engage and bring the threadagainst the fixed blade at the next forward beat of the lay when thetemple is operated, the hooked end of the movable cutter drawing thefilling against the blade (1 and severing it close to the edge of theselvage of the cloth. The temple asa whole is indicated in Fig. 3 at T.The short piece of thread thus severed is retained by the clamp untilthe latter is again moved bodily toward the lay prior to the next changeof filling, such bodily movement of the clamp resulting, as has beendescribed, in the separation of the jaws, and the piece of thread willbe released.

If the shuttle is improperly boxed, when the yoke Y is moved toward thelay the upper end of the arm y will engage the shuttle, operatingprecisely as does the shuttle-feeler y in United States Patent No.628,228. It will prevent the movement of the dog m into position to beengaged by the bunter C and the transfer of filling will be prevented.

The movement of the yoke toward the lay is regulated byasuitableset-screw 60, mounted in an ear A of the bracket A a look-nut holdingthe screw in adjusted position, the yoke engaging and being stopped bythe screw when its proper operative position is attained, as shown inFig. 5.

The arm y of the yoke is herein shown as secured to the other arm y by abolt 80, extended through an ear 11 on the arm y and through a slot ,85in the elbow of the arm y, so that the latter can be by thisconstruction adjusted relatively to the arm which forms the support forthe thread parter and clamp.

Our invention is not restricted to the precise construction andarrangement of parts herein shown and described nor to any particularform of controlling means for the filling-supplying mechanism, suchcontrolling means, as herein illustrated, including the rock -shaft dand the detent-finger d.

ing, and a device to open the clamp as it is moved into position to actupon the thread.

2. In a loom provided with filling-supplying mechanism, controllingmeans therefor, a shuttle adapted to carry a supply of filling, athread-parter and a thread clamp, bodily movable by or through theoperation of the controlling means into position to act upon the threadof the filling-carrier to be ejected, means carried by the lay to closethe clamp and actuate the thread-parter successively upon change offilling, and a relatively-fixed device to open the clamp as it is movedinto position to act upon the thread.

3. In a loom provided with filling-supplying mechanism, controllingmeans therefor, a shuttle adapted to carry a supply of filling, athread-parter and a thread-clamp, each having a movable member, adifferential connection between said members to move them successively,said thread parter and clamp being bodily movable into position to actupon the thread of the filling-carrier to be ejected, means to engagethe movable member of the parter upon a change of filling, and throughsaid difierential connection close the clamp upon the thread andthereafter actuate the parter, and a device to put the clamp and parterinto operative condition before they are moved into position to act uponthe thread.

4. In a loom provided with filling-supplying mechanism, controllingmeans therefor, a shuttle adapted to carry a supply of filling, athread-parter and a thread-clamp, each having a movable member, a springto normally close such member of the clamp, a differential connectionbetween and to move said members successively, said connection actingagainst the spring to open the clamp, means operating through saidconnection upon a change of filling to permit closure of the clamp andthereafter to positively operate the parter to part the thread, and adevice to open the said movable members of the clamp and parter as thelatter are moved into position to act upon the thread.

5. In a loom provided with filling-supplying mechanism, a shuttleadapted to carry a supply of filling, a thread-parter and a threadcla-mp, each including a movable member, means operative upon achange of filling to close the clamp upon the thread of thefillingcarrier to be ejected and to thereafter actuate the parter topart the thread while clamped, and an independent device to open saidmovable members prior to the next change of filling.

6. In a loom provided with filling-supplying mechanism a shuttle adaptedto carry a supply of filling, a thread-parter comprising a fixed memberand a relatively-movable member having a heel, a thread-clamp comprisinga fixed member and a relatively-movable member, a spring to close thelatter, a lug mounted on the movable member of the parter, to engage andopen the movable clamp member against the action of its spring, a hunteron the lay, to engage the heel of the movable parting member upon achange of filling and move it to first permit closure of the clamp andthereafter to part the clamped thread, and an independent device to opensaid parter and clamp prior to the next change of filling.

7. In a loom provided with filling-supplying mechanism, controllingmeans therefor, a shuttle adapted to carry a supply of filling, athread-parter and a thread'clamp, bodily movable by or through theoperation of the controlling means into position to act upon the threadof the filling-carrier to be ejected, the clamp including a movablemember, a spring to close it, the th read-parter including a memberhaving a lug to engage and open the movable clamp member against itsspring, a relatively-fixed device to engage said lug when the clamp andthread-parter are bodily moved into operative position, to open theclamp and the thread-parter, means to close the clamp upon the threadand to thereafter operate the parter upon a change of filling, and adetent to maintain said clamp and the parter closed as they are bodilyreturned to normal position.

8. In a loom provided with filling-supplying mechanism, controllingmeans therefor, a thread-cutting temple located at the same side of theloom with said mechanism, ashuttle adapted to carry a supply of filling,a thread-clamp and a thread-parter, a support therefor actuated uponchange of filling by the controlling means to bodily move the clamp andparter into position to act upon the thread of the filling-carrier to beejected, and means carried by the lay to permit closure of the clamp andthereafter to operate the parter, when they are in operative position,the return of the clamp into normal position bringing the filling endthereby into position to be severed by the temple-cutter.

9. In a loom provided with filling-supplying mechanism, a temple locatedat the same side of the loom and having a thread-cutter, a shuttleadapted to carry a supply of filling, a threadparter, movable prior tochange of filling into position to part the thread adjacent thefilling-carrier to be ejected, a threadclamp movable into position toengage and hold the thread between the temple and the parter, prior tothe action of the latter, means to move the parter and the clamp intoposition to operate, the return of the clamp to normal position drawingthe parted thread held thereby into position to be severed by thetemple-cutter, and means to actuate the parter and the clamp when inoperative position, to respectively part and clamp the filling-thread.

10. In a loom provided with filliug-supplying mechanism, a templelocated at the same side of the loom and having a thread-cutter, ashuttle adapted to carry a supply of filling, a swinging support, meansmounted thereon side by side to clamp and to part the thread of thefilling-carrier to be ejected upon a change of filling, saidfilling-supplying mechanism at such time efiecting the movement of thesupport into operative position, the lay, a hunter thereon to effect thesuccessive operation of the clamp and the parter as the lay beats up,and an independent device to open the clamp and the parter as they aremoving bodily into operative position, the return of said support tonormal position causing the clamp to draw the filling end into positionto be severed by the temple-cutter.

11. In a loomprovided with filling-supplying mechanism, a thread-cutting temple, a swinging yoke governed by said mechanism,normally-closed thread-clamping jaws and parting-blades mounted upon theyoke,a fixed device to open the jaws and blades as they are bodily movedby the yoke into operative position, the actuation of thefilling-supplying mechanism effecting such movement of the yoke, andmeans mounted on the lay to first close the jaws upon the thread tothereafter close the blades to sever it, the return of the yoke tonormal position acting through the holding-jaws to bring the filling endinto position to be severed by the temple-cutter.

12. In a loom provided with filling-supplying mechanism, controllingmeans therefor operative upon exhaustion of the filling in the shuttleto a predetermined extent, a shuttle adapted to carry a supply offilling, a shuttlefeeler, means, including a movable blade, mountedthereon to part the thread of the filling-carrier to be ejected uponchange/of filling, the lay, a bunter thereon to engage said blade andclose it as the lay beats up, a trio tion device to act upon and retainthe blade closed, and an independent device to engage the blade andpositively open it prior to the next change of filling.

13. In a loom provided with filling-supplying mechanism, controllingmeans therefor, a shuttle adapted to carry a supply of filling, asupport governed as to its position by said controlling means andmovable into operati ve position upon a change of filling, a threadclampmounted on said support and comprising a fixed jaw having a guideway, apivoted jaw to cooperate therewith and movable in the guideway, and aspring to close the jaw; a thread-parter, including a movable blade, adifferential connection between said blade and the movable jaw, tocontrol the operation of the latter, a device to act upon saidconnection and open the clampand parter as they are bodily moved by thesupport into operative position, and independent means to act upon theblade and through said connection permit first the closure of the clampupon the thread and thereafter the closing of the blade to part thethread of the' filling to be ejected.

14. In a loom, the lay, filling-supplying mechanism, a shuttlefeeleroperatively connected therewith,athread-clamp and athreadparter mountedon the shuttle-feeler, means to effect the operation of said mechanismupon exhaustion of the filling in the shuttle to a predetermined extent,a device to place said clamp and parter in operative condition as'theshuttle-feeler moves toward the lay, to carry the clamp and parter intoposition to clamp and part the thread of the filling-carrier to beejected when the shuttle is properly boxed, a hunter on the lay, toclose the clamp on the thread and to thereafter actuate the parter asthe change of fillingis effected, and a thread-cutting temple located atthe fillingchangingside of the loom, the return of the shuttle-feeler tonormal position operating through the clamp to bring the thread intoposition to be cut at the temple.

15. In a loom provided with filling-supplyingmechanism, controllingmeans to effect the operation thereof upon exhaustion of the filling inthe shuttle to a predetermined extent, a swinging arm having mountedupon it fixed and movable thread-parting blades and clamping-jaws, aspring to close the movable jaw, a lug carried by the movable blade toengage and open said jaw against its spring, a switch-cam to depress thelug and open the clamp and parter as the swinging arm moves them intooperative position, and independent means to close the clamp andthereafter to operate the parter to sever the thread adjacent thefilling-carrier to be ejected.

16. In a loom, an arm having a thread-receiving notch in its end, fixedand movable blades thereon adjacent the notch, a fixed clamping-jaw anda cooperating pivoted jaw, both mounted on the arm to clamp the threadof a filling-carrier to be ejected, a closingspring for the pivoted jaw,means to move said arm to bring the blades and jaws into operativeposition upon exhaustion of the tilling to a predetermined extent, adifferential connection between the movable blade and jaw, the lay, ahunter thereon to operate through said connection and close theclamping-jaws upon the thread, and thereafter to close the blades andseverit adjacent the filling-carrier to be ejected, and an independentdevice to openthe blades and jaws prior to the next change of filling.

17. In a loom provided with filling-supplying mechanism, ashnttle-feeler, fixed and movable parting-blades mounted thereupon,

a friction device to act upon the movable blade, said blade having adepending heel, a yielding detentto hold the blade open; a thread-clampmounted on the shnttle-feeler at the side of the blades, said clampincluding a pivoted jaw having an extension at one end, a spring toclose the jaw; a transverse lug on the movable blade, to engage the jawextension and rock the jaw against its spring, a device to depress saidlug to open the mov; able blade and the said jaw, means to move theshuttle feeler into operative position prior to a change of filling, thelay, and a bu nter thereon to engage the heel of and close It is herebycertified that in Letters Patent N 0. 641,7 92, granted January 23, 19Cupon the application of Jonas Northrop and Edward S. Stimpson ofHopedale', Mass chusetts, for an improvement in Looms, an error appearsin the printed specificath requiring correction, as follows: In line123, page 4, after the Word end the W0:

held should be inserted; and that the said Letters Patent should be readWith th correction therein that the same may conform to the record ofthe case in the Pate] Oflice.

Signed, countersigned, and sealed this 6th day of February, A. D., 1900.

[SEAL] THOS. RYAN,

First Assistant Secretary of the Interior. Oountersigned O. H. DUELL,

Commissioner of Patents.

